95 SC400 - Trans Skips 2nd
#16
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yes it does! My ecu was rebuilt right before I bought the car by tannin so I didn’t think that was the issue. I originally thought 1-3 worked and od didn’t because of the rev I was at highway speeds and maybe my converter was stalling 2nd but I just found a service manual showing what the rpm’s should be and it got me thinking, then I tested and verified I don’t have second at all. So either the harness somewhere is shorted out the ecu was fixed poorly
#17
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yes it does! My ecu was rebuilt right before I bought the car by tannin so I didn’t think that was the issue. I originally thought 1-3 worked and od didn’t because of the rev I was at highway speeds and maybe my converter was stalling 2nd but I just found a service manual showing what the rpm’s should be and it got me thinking, then I tested and verified I don’t have second at all. So either the harness somewhere is shorted out the ecu was fixed poorly
So I figured my 2nd must be missing.
If I were you, I'd try to find another ECU to test with.
#18
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mine is a 92 sc400 with the 3.92 rear gears, what rpm are you at around 70mph? I’m at like 26-2700 which is why i thought od wasn’t working because I thought it should be lower, but now I’m figuring out that that’s normal and the gear I didn’t have is 2nd and it makes the car lame to drive because of the such long gears it has lmao
#19
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mine is a 92 sc400 with the 3.92 rear gears, what rpm are you at around 70mph? I’m at like 26-2700 which is why i thought od wasn’t working because I thought it should be lower, but now I’m figuring out that that’s normal and the gear I didn’t have is 2nd and it makes the car lame to drive because of the such long gears it has lmao
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#23
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I had transmission issues on my 400 and went down the wrong rabbit hole replacing trans sensors and extensive diagnostics. Turned out it was just an ECU that needed some love. Not the first time for me but hopefully be the last. These cars have been around long enough that we know what commonly fails. Any new uncommon issues and blame the ECU. 8/10 times you'd be right. Glad to hear you got it fixed!
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tonythe93sc400 (08-11-24)
#24
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I had transmission issues on my 400 and went down the wrong rabbit hole replacing trans sensors and extensive diagnostics. Turned out it was just an ECU that needed some love. Not the first time for me but hopefully be the last. These cars have been around long enough that we know what commonly fails. Any new uncommon issues and blame the ECU. 8/10 times you'd be right. Glad to hear you got it fixed!
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zukosc
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10-19-21 07:57 AM